del *.* Delete all files in the current directory
[Suggestion] Using del *.* in the root directory of drive C will make the computer unable to find the mouse, CD drive, cannot use Windows, and even cannot boot. In fact, when using this command in any directory, you need to think carefully.
deltree *.* Delete all directories and files under the current directory
[Suggestion] When using this command in the root directory of drive C, you must ensure that your mind is clear, and you ensure that it is necessary to do so, but we think that you should not use this command in any case. Using deltree *.* in any directory will produce the same or even worse results than del *.*. Be careful! Be careful!
format c:/u Format drive C
[Suggestion] Unless your hard drive is deeply infected with a virus, or a real computer expert tells you that you should do this, do not format drive C. It will make you lose all information, and you will need to spend several hours reinstalling all software.
fdisk Hard disk partitioning
[Suggestion] When partitioning the hard disk, be sure to let someone who has used this command help you use it, otherwise you will lose all information, and even the hard disk cannot be used.
recover Overwrite the disk
[Suggestion] This command is no longer available after DOS 6. If you are using an older version of DOS, it is recommended that you do not use it at any time. It has no other function except destroying all information on your hard disk.
[Suggestion] Using del *.* in the root directory of drive C will make the computer unable to find the mouse, CD drive, cannot use Windows, and even cannot boot. In fact, when using this command in any directory, you need to think carefully.
deltree *.* Delete all directories and files under the current directory
[Suggestion] When using this command in the root directory of drive C, you must ensure that your mind is clear, and you ensure that it is necessary to do so, but we think that you should not use this command in any case. Using deltree *.* in any directory will produce the same or even worse results than del *.*. Be careful! Be careful!
format c:/u Format drive C
[Suggestion] Unless your hard drive is deeply infected with a virus, or a real computer expert tells you that you should do this, do not format drive C. It will make you lose all information, and you will need to spend several hours reinstalling all software.
fdisk Hard disk partitioning
[Suggestion] When partitioning the hard disk, be sure to let someone who has used this command help you use it, otherwise you will lose all information, and even the hard disk cannot be used.
recover Overwrite the disk
[Suggestion] This command is no longer available after DOS 6. If you are using an older version of DOS, it is recommended that you do not use it at any time. It has no other function except destroying all information on your hard disk.
